An integrated method for predicting the hydrodynamic resistance of low-cB ships

Tzabiras, G; Kontogiannis, K

dc.contributor.author	Tzabiras, G	en
dc.contributor.author	Kontogiannis, K	en
dc.date.accessioned	2014-03-01T01:32:44Z
dc.date.available	2014-03-01T01:32:44Z
dc.date.issued	2010	en
dc.identifier.issn	00104485	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20209
dc.subject	3D RANS solution	en
dc.subject	Conformal mapping	en
dc.subject	Free-surface	en
dc.subject	Potential flow	en
dc.subject	Ship resistance	en
dc.subject.other	3D RANS solution	en
dc.subject.other	Block decomposition	en
dc.subject.other	Bulbous bow	en
dc.subject.other	CFD method	en
dc.subject.other	Conformal mapping technique	en
dc.subject.other	Curvilinear coordinate	en
dc.subject.other	Extrapolation methods	en
dc.subject.other	Free surfaces	en
dc.subject.other	Full scale	en
dc.subject.other	Fundamental principles	en
dc.subject.other	Hydrodynamic resistance	en
dc.subject.other	Integrated method	en
dc.subject.other	Iterative procedures	en
dc.subject.other	Non-linear	en
dc.subject.other	Potential solutions	en
dc.subject.other	Quadrilateral elements	en
dc.subject.other	RANS equation	en
dc.subject.other	Resistance coefficients	en
dc.subject.other	Ship form	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Fluid dynamics	en
dc.subject.other	Hydrodynamics	en
dc.subject.other	Marine engineering	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Potential flow	en
dc.subject.other	Ship mockups	en
dc.subject.other	Ships	en
dc.subject.other	Three dimensional	en
dc.subject.other	Conformal mapping	en
dc.title	An integrated method for predicting the hydrodynamic resistance of low-cB ships	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.cad.2009.08.001	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.cad.2009.08.001	en
heal.publicationDate	2010	en
heal.abstract	An integrated CFD method is described for predicting the total hydrodynamic resistance at model as well as at full scale of conventional ship forms. The method combines a non-linear potential with a viscous flow solution of the RANS equations. The potential solution is achieved by covering the hull and the free surface with quadrilateral elements while convergence is based on an iterative procedure. A three-block decomposition is introduced to solve the RANS equations in curvilinear co-ordinates and a new conformal mapping technique has been developed to generate grids effectively. To validate the method, experiments have been carried out for a model with three different bulbous bows at the towing tank of NTUA. Computed resistance coefficients for both the models and the 40:1 full scale ships are also compared in order to evaluate the fundamental principles of empirical extrapolation methods. © 2010 Elsevier Ltd. All rights reserved.	en
heal.journalName	CAD Computer Aided Design	en
dc.identifier.doi	10.1016/j.cad.2009.08.001	en
dc.identifier.volume	42	en
dc.identifier.issue	11	en
dc.identifier.spage	985	en
dc.identifier.epage	1000	en